callbacks in loops

gistfile1.txt

var processQueue = function(data) {
    if(typeof data === 'undefined'){
        //start of queue
        data = new Object({});
    }
    
    util.isError(data){
        console.error('error sending msg');
        console.error(util.inspect(data));
        //process.exit(1);
    }else{
        // no data = start of queue so dont need to check respose data
        if (messageQueue.length) {
            // Bloody rate limit
            twit.newDirectMessage(currentUserID, messageQueue.shift(), processQueue);  
            //console.log('now there are ' + messageQueue.length + ' messages left');
        }
    }
};